许多地方都缺水地球上的水很多。如果在宇宙空间看地球,地球是蓝色的,因为地球的大部分地方都被水覆盖着,这就难怪人们把地球称做“水的行星”了。地球上的水不仅广泛地分布在地面上的江河湖海中,在地底下,在大气中,也都有水分布。正因为水很多,以前人们都以为水和空气一样,是取之不尽、用之不竭的,并不把它作为一种宝贵的资源看待。然而近些年来,水荒不断地在 Lack of water in many places The earth has a lot of water. If we look at Earth in the universe and the Earth is blue, because most parts of the earth are covered with water, it is no wonder that people call the Earth a “planet of water.” Earth’s water is not only widely distributed in the rivers and lakes on the ground in the sea, under the ground, in the atmosphere, but also have water distribution. Because of the large amount of water, people used to think that water and air are inexhaustible and do not treat it as a valuable resource. However, in recent years, water shortage continues